Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Energy-saving ship-handing method for all-gyration tugboat assisting large ship in berthing and departing

A full-turn and tugboat technology, applied in the direction of tugboats, etc., can solve the problems of large difference in fuel consumption, generation of ineffective power, fuel consumption, etc., and achieve good fuel-saving effect and obvious energy-saving effect

Inactive Publication Date: 2009-12-30
佟明亮
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to its unique design and generally high power, the full-turn tugboat is very flexible to maneuver, but this design is also accompanied by a defect, that is, it causes a part of inactive power to be generated - fuel consumption
[0006] Practice has shown that in daily navigation and operation, a phenomenon will occur in full-turn tugboats: when the tugboat is running with dual main engines with the same number of revolutions, the speed of the ship will be the same as turning off one of the main engines and keeping the other main engine at the same speed. The speeds during the operation are almost the same, no matter in the low speed, slow speed, medium speed or fast state, if the above methods are used to operate, the speed will differ by at most about 2 nautical miles, but the fuel consumption will vary greatly.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Energy-saving ship-handing method for all-gyration tugboat assisting large ship in berthing and departing
  • Energy-saving ship-handing method for all-gyration tugboat assisting large ship in berthing and departing
  • Energy-saving ship-handing method for all-gyration tugboat assisting large ship in berthing and departing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] Such as Figure 1 to Figure 7 shown. An energy-saving ship maneuvering method based on full-turn tugboats assisting large ships berthing or unberthing. Taking NG7 as an example, it includes formulating the main engine revolution table of the tugboat's energy-saving ship maneuvering method and setting the slow speed and slow speed during operation according to the revolution number. , Medium-speed and fast power conversion, complete various actions such as pushing and dragging, and replace the existing dual-host driving mode with a single host drive, so as to achieve the best energy-saving effect.

[0052]Due to the different ship conditions of each full-turn tugboat, before using this method, you should carefully test and formulate an energy-saving ship steering method suitable for yourself. The new tachometer should maintain the basic stability of the original power during various actions and power conversions during navigation, towing navigation or daily port operati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an energy-saving ship-handling method based on an all-gyration tugboat, which is an improvement on the prior ship-handling method. The energy-saving ship-handling method is characterized by comprising the steps of detecting a revolution meter of a host machine of the energy-saving ship-handling method according to the condition of the tugboat, adjusting the rotational frequency of the tugboat at dead slow speed, low speed, middle speed and high speed according to the revolution meter and keeping the output power of the host machine to basically stable at different speeds so as to realize that single-host-machine operation mode replaces double-host-machine operation mode to complete steps of navigation, towing navigation and pushing or towing operation for port working. The practice shows that the ship-handling method has remarkable effect on energy saving and can be popularized and applied to various all-gyration tugboats in any navigation area.

Description

technical field [0001] The invention belongs to a fuel-saving (energy-saving) method for a full-turn tugboat engaged in port operations (port operations), navigation, and towing navigation. Background technique [0002] Azimuth tugboat is an independent type of ship. It was gradually introduced into China in the 1970s and is mainly used for port operations and long-distance towing operations. At present, it has become the absolute main force for ships in major domestic ports. [0003] The steering system and main mechanical parts of the full-turn tugboat are currently produced by Japan and Germany. Its power plant is composed of two marine diesel engines, each main engine drives a propeller, and the propeller and the rudder function are designed as a whole, which can rotate 360 ​​degrees, so when operating this kind of ship, it can be in situ 360-degree rotation, so it is called full-turn tugboat. [0004] When tugboats are engaged in port operations, they often need to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B63B35/68
Inventor 佟明亮
Owner 佟明亮
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products